Lennox 74W03 Ignition Control 321894-706 utilizing genuine Carrier 50HJ500451 components

utilizing genuine Carrier 50HJ500451 components ensures the mechanical integrity of the burner rack

This design is essential for maintaining stable evaporator superheat across a capacity range of 1/4 to 1/3 ton

Operating at 460V / 60Hz with a 1/6 HP output

This assembly serves as a direct drop-in for worn RG128 units

Lennox 74W03 Ignition Control 321894-706 utilizing genuine Carrier 50HJ500451 componentsThe Lennox 74W03 Ignition Control is a critical OEM replacement component engineered for single stage Elite series gas furnaces. This direct spark ignition module (also compatible with specific hot surface ignition setups depending on the revision) serves as the primary controller for combustion sequences, managing the gas valve, inducer motor, and flame rectification process. Operating on a standard 24VAC control circuit, the 103098 01 board features